“The opposite of a fact is falsehood, but the opposite of one profound truth may very well be another profound truth.”

Of course I don’t believe in it pointing to horseshoe on his office wall. But I understand that it brings you luck whether you believe in it or not.

An independant reality in the ordinary physical sense can neither be ascribed to the phenomenon nor to the agencies of observation.

A physicist is just an atom’s way of looking at itself.

Your theory is crazy, but it’s not crazy enough to be true.

A deep truth is a truth so deep that not only is it true but it’s exact opposite is also true.

Accuracy and clarity of statement are mutually exclusive.

Never express yourself more clearly than you are able to think.

Our task is not to penetrate the essence of things, the meaning of which we do not know anyway, but rather to develop concepts which allow us to talk in a productive way about phenomena in nature

The opposite of every great idea is another great idea.

Einstein, stop telling God what to do!

Prediction is very difficult, especially if it’s about the future.

Anyone who can contemplate quantum mechanics without getting dizzy hasn’t understood it.

Nothing exists until it is measured.

It is not enough to be wrong, one must also be polite.

You must come to Copenhagen to work with us. We like people who can actually perform thought experiments!

No paradox, no progress.